Best BLACK+DECKER String Trimmers Under $150 in 2026: 4 Picks

Quick picks

The best fit for you

• You want a ready-to-use tool for small lawns BLACK+DECKER 20V MAX String Trimmer It includes batteries and an autofeed spool for immediate use.
• You need a lightweight trimmer with automatic line feed BLACK+DECKER 40V 13-Inch String Trimmer and Edger It weighs 6.4 pounds and features an automatic line feeding system.
• You want a complete system with a sweeper included BLACK+DECKER 40V Trimmer and Sweeper Combo It offers a 40V combo with a high-speed sweeper and included charger.

Our 4 picks

1 Best overall

BLACK+DECKER 20V MAX String Trimmer

Best for: Small lawns needing trim and edge

Voltage

20V

Battery Capacity

1.5Ah

View on Amazon: BLACK+DECKER 20V MAX String Trimmer Affiliate link

This BLACK+DECKER 20V MAX String Trimmer/Edger converts from a trimmer to a wheeled edger. It includes two 1.5 Ampere Hour batteries and an autofeed spool with 30 feet of 0.065-inch line. The Power Drive Transmission increases torque for cutting. You get a practical tool for small yards. The autofeed system saves time on line replacement. It is a solid entry-level option for basic lawn maintenance.

Pros

• Converts from trimmer to wheeled edger
• Includes two 1.5 Ampere Hour batteries
• Auto Feed System for line replacement
• Power Drive Transmission for increased torque

Cons

• 1.5 Ah batteries offer less runtime than 2.0 Ah options
• No remote or app control listed
• No display to show battery level

Good fit if

• You need a trimmer that also edges
• You want to avoid hand-winding string
• You have a small lawn

Skip if

• You need long runtime for large yards
• You prefer 40V power for thick weeds
• You want smart app connectivity

Verdict: The BLACK+DECKER 20V MAX String Trimmer fits users who want a dual-purpose tool for small yards. The included batteries and autofeed spool make it ready to use out of the box.

2 Best premium

BLACK+DECKER 20V MAX Trimmer/Edger with Extra Battery

Best for: small yards and light trimming tasks

Voltage

20V MAX

Power Source

battery

Line Feed System

automatic feed

Battery Capacity

2.0Ah

View on Amazon: BLACK+DECKER 20V MAX Trimmer/Edger with Extra Battery Affiliate link

This BLACK+DECKER 20V MAX string trimmer and edger kit includes two 2.0Ah lithium batteries for extended runtime. The automatic feed spool eliminates the need for manual bumping to extend line. It serves as a versatile tool for clearing driveways, sidewalks, and decks. The system is compatible with other BLACK+DECKER 20V MAX cordless tools. This setup offers improved performance for basic yard maintenance tasks.

Pros

• Includes two 2.0Ah batteries for longer runtime
• Automatic feed spool requires no bumping
• Functions as both a trimmer and edger
• Compatible with the 20V MAX tool ecosystem

Cons

• Lower 20V MAX voltage compared to 40V competitors
• Smaller 2.0Ah battery capacity limits continuous use
• No variable speed settings listed in specifications

Good fit if

• You need a budget-friendly entry-level trimmer
• You already own other 20V MAX BLACK+DECKER tools
• You prefer automatic line feed to avoid bumping

Skip if

• You require high power for thick overgrowth
• You need extended runtime beyond two batteries
• You want a heavier duty 40V system

Verdict: BLACK+DECKER 20V String Trimmer Kit fits homeowners with small yards who want a simple, affordable tool with automatic line feed. It is ideal for light edging and trimming tasks where high power is not essential.

3 Best budget

BLACK+DECKER 40V Trimmer and Sweeper Combo

Best for: Users wanting a trimmer and sweeper combo

Voltage

40V Max

Power Source

battery

Line Feed System

automatic feed spool

Included Battery

Battery and Charger Included

Dimensions

10.9 × 7.5 × 40.9 inches

Weight

11 pounds

View on Amazon: BLACK+DECKER 40V Trimmer and Sweeper Combo Affiliate link

This BLACK+DECKER unit combines a 40V MAX string trimmer with a matching 40V MAX sweeper. The trimmer features a POWER DRIVE high-torque transmission and an automatic feed spool for consistent line delivery. The sweeper generates wind speeds up to 130 MPH to clear debris. Both tools share a battery system and include a charger. It weighs 11 pounds and measures 40.9 inches in height. This setup suits users who want to mow, trim, and sweep with a single battery platform.

Pros

• Includes both 40V MAX string trimmer and sweeper
• Automatic feed spool maintains trimmer line length
• Sweeper delivers up to 130 MPH wind speed
• Battery and charger included in the box

Cons

• Trimmer cutting width is only 7.5 inches
• Unit weighs 11 pounds, adding to fatigue
• No variable speed control mentioned for sweeper

Good fit if

• You want a trimmer and sweeper in one package
• You prefer automatic line feed for less maintenance
• You already use 40V MAX BLACK+DECKER batteries

Skip if

• You need a wider cutting deck for large lawns
• You require a lightweight tool under 10 pounds
• You prefer gas-powered tools for heavy duty work

Verdict: BLACK+DECKER 40V Max Sweeper and Trimmer offers a complete yard care system with included battery and charger. It fits homeowners who value the convenience of an automatic feed spool and a high-speed sweeper for hard surfaces.

4 Best 13-inch

BLACK+DECKER 40V 13-Inch String Trimmer and Edger

Best for: trimming and edging with automatic line feed

Voltage

40V

Cutting Swath

13 in

Power Source

battery

Line Feed System

automatic

Cutting Width

13-Inch

Application

Lawn

View on Amazon: BLACK+DECKER 40V 13-Inch String Trimmer and Edger Affiliate link

This BLACK+DECKER unit combines a 40V MAX battery with a 13-inch cutting swath. It features automatic line feeding via the AFS system, so you do not need to bump the head to extend the trimmer line. The high-torque transmission helps tackle thick grass and weeds. You can switch from trimming to edging quickly. The included wall-mountable charging base saves space. It is suitable for maintaining a manicured lawn after mowing.

Pros

• 40V MAX Lithium Ion battery with state of charge indicator
• 13-inch cutting swath for efficient grass cutting
• Automatic line feeding system keeps work continuous
• Quick conversion from string trimmer to lawn edger
• Wall-mountable charging base for convenient storage

Cons

• 6.4-pound weight may cause fatigue during extended use
• 40V system requires a compatible 40V MAX battery
• Limited to 13-inch cutting width compared to wider models

Good fit if

• You want to switch between trimming and edging without changing tools
• You prefer automatic line feeding to avoid manual bumping
• You have a 40V MAX battery ecosystem already

Skip if

• You need a wider cutting swath for large, open areas
• You prefer a lighter tool for overhead trimming
• You only have 20V MAX batteries and no 40V options

Verdict: BLACK+DECKER 40V 13-Inch String Trimmer fits users who want a versatile trimmer and edger combo with automatic line feeding. It is ideal for those who already own 40V MAX batteries and value the convenience of a wall-mountable charger.

Specifications side by side

How to Choose the Right Trimmer

1. Match Voltage to Yard Size

   Check the voltage rating to ensure the tool handles your property size. The BLACK+DECKER 20V MAX String Trimmer suits small lawns needing light trim and edge work. Its lower voltage keeps the unit manageable for tight spaces. For larger areas, consider the 40V models. The 40V system provides more power for sustained cutting. Higher voltage often correlates with longer runtime and better performance on thicker weeds. Select the voltage that aligns with your typical mowing duration and grass density. This spec determines the tool's capability and endurance during your work.

2. Check Cutting Width for Coverage

   Review the cutting width to estimate how much area you cover per pass. The BLACK+DECKER 40V 13-Inch String Trimmer offers a 13-inch cutting width. A wider deck reduces the number of passes needed for larger lawns. Narrower models may require more time to complete the same job. Consider your yard layout and obstacle density. A wider cut is efficient for open spaces but may be harder to maneuver near fences. Match the width to your primary mowing needs. This spec directly impacts your efficiency and total job time.

3. Verify Power Source Compatibility

   Confirm the power source matches your existing equipment. All listed models are cordless, relying on rechargeable batteries. If you already own BLACK+DECKER 20V or 40V batteries, choose a compatible model to save costs. The BLACK+DECKER 40V Trimmer and Sweeper Combo includes its own battery and charger. This is ideal if you lack existing power tools. Checking compatibility ensures you do not buy redundant batteries. It also guarantees the tool works with your current charging infrastructure. This spec simplifies your purchase and setup process significantly.

4. Look for Automatic Line Feed

   Prioritize tools with automatic line feed for convenience. The BLACK+DECKER 20V MAX String Trimmer features an autofeed spool. This system advances the trimmer line automatically as it wears down. You avoid stopping to tap the spool or manually feed line. This feature saves time and keeps your cutting consistent. Check the product description for terms like autofeed or automatic feed. It is a significant quality-of-life improvement for frequent users. This spec reduces maintenance interruptions during your trimming sessions.

5. Consider Included Accessories

   Check what comes in the box before buying. The BLACK+DECKER 40V Trimmer and Sweeper Combo includes a battery, charger, and sweeper attachment. This creates a complete yard care system out of the box. Other models may require separate purchases for batteries or chargers. Verify if the tool includes the necessary power source. This spec affects the total value and readiness of the product. A complete kit allows immediate use without additional shopping. Ensure the included items match your immediate needs.

Frequently asked questions

See also

• best black decker string trimmers with 4 0 ah
• black decker vs WORX string trimmer
• best paper trimmers under 150
• best string trimmers under 1000